Home / 18,926,251.70-28,389,603.59-5,278,567.73

Finding the Fourth Proportional to 18,926,251.70, 28,389,603.59 and 5,278,567.73

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Solution

The fourth proportional to 18,926,251.70, 28,389,603.59 and 5,278,567.73 is: 7,917,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926,251.70 : 28,389,603.59 = 5,278,567.73 : x
  2. Step 2: Convert to fraction form
    18,926,251.70/28,389,603.59 = 5,278,567.73/x
  3. Step 3: Cross multiply
    18,926,251.70x = 28,389,603.59 × 5,278,567.73
  4. Step 4: Simplify right side
    18,926,251.70x = 149,856,445,209,325.28
  5. Step 5: Solve for x
    x = 149,856,445,209,325.28/18,926,251.70
  6. Step 6: Final answer
    x = 7,917,914.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.